Siemens SINAMICS S120 Equipment Manual page 278

Line Modules Booksize
3.7 Smart Line Modules Booksize Compact
A sufficiently high supply short circuit power is required for tripping the fuses within the
predefined time in the event of a ground fault. The ratio of line short-circuit power to rated
power must be ≧ 70. An insufficient system fault level (short-circuit power) increases the
time to trip beyond permissible levels (e.g. a fire is possible).
The DC link discharge voltage hazard warning in the local language must be attached to all
of the components.
A set of labels in 16 languages is supplied with the component.
The 80 mm clearances above and below the components must be observed.
It is only permissible to establish connections to the DC link using the adapters that
SIEMENS has recommended (DC link adapter and DC link rectifier adapter).
CAUTION
The tightening torque of the DC link busbar screws (1.8 Nm, tolerance +30 %) must be
checked before commissioning and with the complete system in a no-voltage condition
(powered-down) and with the DC link discharged. After transportation, the screws must be
tightened.
If a 50 mm wide Motor Module or if a DC link component with the appropriate width (e.g.
Braking Module, Control Supply Module, Voltage Clamping Module) is located at the
lefthand end of the drive line-up, then the DC link bridge including all of the screws must be
removed. It is not permissible to insert the screws without a DC link bridge.
For all other power units and DC link components (e.g. Capacitor Module) that are wider
than 50 mm, it is neither permissible to move the DC link bridge to the left nor remove it.
If this is not carefully observed, this can result in damage and accidents.
For line supplies without regenerative feedback capability (e.g. diesel generator), the
regenerative feedback capability of the Smart Line Modules must be deactivated by means
of parameters. The braking energy must then be dissipated via an additional Braking
Module with a braking resistor in the drive line-up.
278
WARNING
DANGER
WARNING
DANGER
DANGER
DANGER
Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6
Booksize power units